FamilySearch (https://familysearch.org/pal:/MM9.1.1/NXP1-1YY : accessed 16 Nov 2014), Franz Joseph Servaes in entry for Carl Anton Servaes, ; citing DUESSELDORF STADT,RHEINLAND,PRUSSIA; FHL microfilm 939314. » Quellen » Familienstammbaum Servaes, Maastricht/Venlo/Straelen/Neuss/Düsseldorf » Genealogie Online"> FamilySearch (https://familysearch.org/pal:/MM9.1.1/NXP1-1YY : accessed 16 Nov 2014), Franz Joseph Servaes in entry for Carl Anton Servaes, ; citing DUESSELDORF STADT,RHEINLAND,PRUSSIA; FHL microfilm 939314. » Quellen » Familienstammbaum Servaes, Maastricht/Venlo/Straelen/Neuss/Düsseldorf » Genealogie Online">